如图1,当参数$\lambda ={\lambda }_2$时,连续函数$y=\frac{x}{1+\lambda x}\left(x\ge 0\right)$ 的图像分别对应曲线$C_1$和$C_2$,则（）

A．	$0<{\lambda }_1<{\lambda }_2$	B．	$0<{\lambda }_2<{\lambda }_1$
C．	${\lambda }_1<{\lambda }_2<0$	D．	${\lambda }_2<{\lambda }_1<0$